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A method to measure the development of song preferences in female cowbirds, Molothrus ater
Animal Behaviour, 2006Male song development has been studied in detail across a range of different songbird species. Very little, however, is known about the development of preferences for songs in females. Here we describe a method to study female preferences outside the breeding season by documenting female responses to playbacks of songs of different developmental stages
David J. White +3 more
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Journal of Comparative Physiology A: Sensory, Neural, and Behavioral Physiology, 2002
In brown-headed cowbirds, Molothrus ater, as in many songbird species, vocalizations are fundamental to reproduction. In our studies, experiments utilizing different social housing regimes and geographic comparisons have indicated the social learning of males' vocalizations and associated abilities to use vocalizations effectively during the breeding ...
T M, Freeberg +4 more
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In brown-headed cowbirds, Molothrus ater, as in many songbird species, vocalizations are fundamental to reproduction. In our studies, experiments utilizing different social housing regimes and geographic comparisons have indicated the social learning of males' vocalizations and associated abilities to use vocalizations effectively during the breeding ...
T M, Freeberg +4 more
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Avian Diseases, 1972
SUMMARY The prevalence of Enterobacteriaceae was studied in 60 wild birds (45 cowbirds, Molothrus ater, and 15 other specimens belonging to 11 other species). The birds were collected in central Michigan between 1966 and 1969. Seventy-eight different bacterial isolates were recovered (Ewing classification): 28 belonged to the tribe Escherichieae, 22 to
A I, Radwan, J R, Lampky
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SUMMARY The prevalence of Enterobacteriaceae was studied in 60 wild birds (45 cowbirds, Molothrus ater, and 15 other specimens belonging to 11 other species). The birds were collected in central Michigan between 1966 and 1969. Seventy-eight different bacterial isolates were recovered (Ewing classification): 28 belonged to the tribe Escherichieae, 22 to
A I, Radwan, J R, Lampky
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Discrimination between host songs by brood parasitic brown-headed cowbirds (Molothrus ater)
Animal Cognition, 2002Songbirds can learn both to produce and to discriminate between different classes of acoustic stimuli. Varying levels of auditory discrimination may improve the fitness of individuals in certain ecological and social contexts and, thus, selection is expected to mold the cognitive abilities of different species according to the potential benefits of ...
Mark E, Hauber +3 more
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Pairing in captive brown-headed cowbirds (Molothrus ater)
Canadian Journal of Zoology, 1978Twenty-five male and 15 female brown-headed cowbirds were captured in the fall of 1966. In mid-December of 1966 they were subjected to extended photoperiod to bring them into breeding condition. Various combinations of yearling and adult males and females were observed in eight trials to determine the effect of age and dominance of males on pairing ...
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Molecular Genetic Analysis of a Brown-Headed Cowbird (Molothrus Ater) Population
1993The mtDNA control region of the Brown-headed Cowbird (Molothrus ater) was sequenced and comparisons made at the inter- and intraspecific level. Comparison of the control region with that of another Passerine, Darwin's Finch (Geospiza scandens), revealed a high degree of both gross and fine scale structural similarity.
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Distribution of Molothrus ater in California with the Description of a New Race
The Condor, 1922Dickey, Donald R., Rossem, A. J.
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Brown-headed Cowbird (Molothrus ater)
The Birds of North America Online, 1993openaire +1 more source